1OLO: Hexameric Replicative Dna Helicase Repa From Plasmid Rsf1010 Crystal Structure
reference: Hexameric RSF1010 helicase RepA: the structural and functional importance of single amino acid residues., Ziegelin G, Niedenzu T, Lurz R, Saenger W, Lanka E, Nucleic Acids Res. 2003 Oct 15;31(20):5917-29. PMID: 14530440

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